190330-N-RH019-0001 PACIFIC OCEAN (March 30, 2019) The guided-missile destroyer USS Momsen (DDG 92) fires its Mark 45 5-inch gun as part of a live-fire exercise in the Pacific Ocean, March 30, 2019. Momsen is conducting routine operations in the eastern Pacific. (U.S. Navy photo by Mass Communication Specialist 2nd Class Sean Rinner/Released)